Electric Wiring Domestic Thirteenth edition Brian Scaddan

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Electric Wiring Domestic Thirteenth edition Brian Scaddan

Contents

PREFACE …………………………………………………………………………………vii
CHAPTER 1 The UK Generation, Transmission and
Distribution System ………………………………………………………………… 1
Voltage Bands ……………………………………………………………………………2
The Electricity Safety, Quality and Continuity Regulations 2002 ……………..
(ESQCR) ……………………………………………………………………………………3
The Electricity at Work Regulations 1989 ………………………………………..4
The IEE Wiring Regulations (BS 7671) ……………………………………………4
The Building Regulations 2000 Part ā€˜Pā€™ …………………………………………..6
Earthing Systems ……………………………………………………………………..11
CHAPTER 2 Domestic Electrical Installations ………………………………15
The Main Intake Position ……………………………………………………………15
Circuits …………………………………………………………………………………..20
Cables ……………………………………………………………………………………34
Wiring Systems and Installation Methods ………………………………………39
CHAPTER 3 The Importance of Earthing and Bonding ………………….57
Electric Shock ………………………………………………………………………….57
Basic Protection ……………………………………………………………………….59
Fault Protection ………………………………………………………………………..59
What is Earth and Why and How Do We Connect to it? …………………….60
Residual Current Devices …………………………………………………………..68
Bonding: Questions and Answers ………………………………………………..70
The Faraday Cage …………………………………………………………………….71
CHAPTER 4 Bathrooms …………………………………………………………..73
Zone 0 ……………………………………………………………………………………73
Zone 1 ……………………………………………………………………………………74
Zone 2 ……………………………………………………………………………………75
Supplementary Equipotential Bonding ………………………………………….76
CHAPTER 5 Protection ……………………………………………………………77
Protection Against Mechanical Damage ………………………………………..77
Protection of Persons/Livestock Against Dangers ……………………………80
CHAPTER 6 Circuit Design ………………………………………………………89
Diversity ………………………………………………………………………………….90
Basic Circuit Design ………………………………………………………………….91
Summary ………………………………………………………………………………104
CHAPTER 7 Inspection and Testing …………………………………………105
Instruments …………………………………………………………………………..105
Testing ………………………………………………………………………………….112
CHAPTER 8 Security Alarm and Telephone Systems …………………..131
Security Alarms ………………………………………………………………………131
Telephone Systems …………………………………………………………………133
APPENDIX 1 Basic Electrical Theory Revision ……………………………137
Electrical Quantities and Units …………………………………………………..137
Power, Current and Voltage ………………………………………………………141
APPENDIX 2 Conductor Identification, Notices and
Warning Labels ……………………………………………………………………….143
Conductor Identification ……………………………………………………………143
Notices and Warning Labels ………………………………………………………144
INDEX …………………………………………………………………………………..145

Preface

Electric Wiring: Domestic has for many years been acknowledged
as the standard guide to the practical aspects of domestic electric
wiring. It seeks to address the areas of most concern to the qualified
electrician, especially design and testing. It will also be a useful
addition to the resources available for students working towards
NVQs or City & Guilds qualifications.
This book is also a vital reference source for many other professionals
and operatives whose work demands a knowledge of electrical
installations, including electrical engineers, heating engineers,
architects and maintenance staff. The contents will be of value to
those intending to gain a Domestic Installer Scheme Qualification
which relates to Part ā€˜Pā€™ of the Building Regulations. It is not
intended as a DIY manual, although some non-qualified persons
may find certain topics useful before calling in qualified operatives.
The contents of this new edition cover current professional best
practice and are fully compliant with the 17th Edition IEE Wiring
Regulations.